specific gravity hydrometer

简明释义

石油相对密度计

英英释义

例句

1.To measure the density of a liquid, we used a specific gravity hydrometer (比重计).

为了测量液体的密度，我们使用了一个specific gravity hydrometer（比重计）。

2.The specific gravity hydrometer (比重计) indicated that the solution was denser than water.

该specific gravity hydrometer（比重计）显示溶液的密度大于水。

3.The specific gravity hydrometer (比重计) is essential for winemakers to assess fermentation progress.

对于酿酒师来说，specific gravity hydrometer（比重计）是评估发酵进程的重要工具。

4.In brewing, a specific gravity hydrometer (比重计) helps determine the sugar content of the wort.

在酿酒过程中，specific gravity hydrometer（比重计）有助于确定麦芽汁中的糖分含量。

5.We calibrated the specific gravity hydrometer (比重计) before taking measurements to ensure accuracy.

在进行测量之前，我们校准了specific gravity hydrometer（比重计）以确保准确性。

作文

The concept of density is fundamental in various scientific fields, particularly in chemistry and physics. One common instrument used to measure the density of liquids is the specific gravity hydrometer. This device serves a crucial purpose in determining the specific gravity of a liquid, which is defined as the ratio of the density of the liquid to the density of a reference substance, typically water. Understanding how a specific gravity hydrometer works can provide valuable insights into its applications and significance in both laboratory and industrial settings.A specific gravity hydrometer consists of a sealed glass tube with a weighted bottom that allows it to float upright in a liquid. The scale on the hydrometer is calibrated to indicate the specific gravity directly. When the hydrometer is placed in a liquid, it displaces a volume of that liquid equal to its own weight, according to Archimedes' principle. The level to which the hydrometer sinks in the liquid correlates with the liquid's density: the denser the liquid, the higher the hydrometer floats.In practical applications, the specific gravity hydrometer is widely used in industries such as brewing, winemaking, and even in the petroleum sector. For example, brewers often use this instrument to monitor the fermentation process. By measuring the specific gravity of the wort before and after fermentation, they can determine the alcohol content of the beer. Similarly, winemakers can assess the sugar content in grape juice, which helps them predict the potential alcohol level in the finished wine.Moreover, the specific gravity hydrometer plays an essential role in quality control. In the petroleum industry, for instance, different grades of crude oil have varying specific gravities. This measurement can help in assessing the quality and market value of the crude oil. A higher specific gravity indicates a denser oil, which can be more valuable depending on the refining process.In addition to these applications, the specific gravity hydrometer is also utilized in educational settings to teach students about buoyancy and density. Through hands-on experiments, students can learn how different liquids affect the floating behavior of the hydrometer. This experiential learning reinforces theoretical concepts in physics and chemistry, making it easier for students to grasp complex ideas.However, while using a specific gravity hydrometer, it is essential to consider factors that may affect accuracy. Temperature can significantly influence the density of liquids, so it is crucial to calibrate the hydrometer at a specific temperature or adjust readings accordingly. Additionally, impurities in the liquid can alter its density, leading to misleading results. Therefore, maintaining a controlled environment and using clean samples is vital for obtaining accurate measurements.In conclusion, the specific gravity hydrometer is a versatile tool that finds applications across various industries and educational contexts. Its ability to measure the density of liquids provides essential data for quality control, production processes, and scientific experiments. As we continue to explore the properties of materials, understanding instruments like the specific gravity hydrometer becomes increasingly important in our pursuit of knowledge and innovation.

密度的概念在各个科学领域中都是基础，尤其是在化学和物理学中。用于测量液体密度的一种常见仪器是比重计。该设备在确定液体的比重方面起着至关重要的作用，比重被定义为液体密度与参考物质（通常是水）密度的比率。理解比重计的工作原理可以为我们提供有关其在实验室和工业环境中应用及重要性的宝贵见解。比重计由一个密封的玻璃管组成，底部加重，使其能够在液体中直立浮动。比重计上的刻度经过校准，可以直接指示比重。当将比重计放入液体中时，它会排开与其自身重量相等的液体体积，根据阿基米德原理，浮在液体中的比重计沉入的深度与液体的密度相关：液体越密，比重计浮得越高。在实际应用中，比重计广泛用于酿酒、酿酒和石油行业等行业。例如，酿酒师常常使用此仪器来监控发酵过程。通过在发酵前后测量麦芽汁的比重，他们可以确定啤酒的酒精含量。同样，酿酒师可以评估葡萄汁中的糖分，这有助于他们预测成品酒的潜在酒精含量。此外，比重计在质量控制中也发挥着重要作用。在石油行业，不同等级的原油具有不同的比重。这一测量可以帮助评估原油的质量和市场价值。比重越高，表示油越稠，根据精炼过程可能更具价值。除了这些应用，比重计还用于教育环境中，教学生有关浮力和密度的知识。通过动手实验，学生可以学习不同液体如何影响比重计的浮动行为。这种体验式学习强化了物理和化学中的理论概念，使学生更容易掌握复杂的思想。然而，在使用比重计时，考虑可能影响准确性的因素至关重要。温度会显著影响液体的密度，因此必须在特定温度下校准比重计或相应调整读数。此外，液体中的杂质可能会改变其密度，导致误导性结果。因此，保持受控环境并使用干净的样本对于获得准确的测量至关重要。总之，比重计是一种多功能工具，广泛应用于各个行业和教育场景。它测量液体密度的能力为质量控制、生产过程和科学实验提供了重要数据。随着我们继续探索材料的性质，理解像比重计这样的仪器在我们对知识和创新的追求中变得越来越重要。